diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -14351,10 +14351,15 @@
       Op = DAG.getFreeze(Op);
   }
   // NOTE: this strips poison generating flags.
-  SDValue R = DAG.getNode(N0.getOpcode(), SDLoc(N0), N0->getVTList(), Ops);
-  assert(DAG.isGuaranteedNotToBeUndefOrPoison(R, /*PoisonOnly*/ false) &&
-         "Can't create node that may be undef/poison!");
-  return R;
+  if(N0.getOpcode() == ISD::DELETED_NODE){
+    return SDValue();
+  }
+  else{
+    SDValue R = DAG.getNode(N0.getOpcode(), SDLoc(N0), N0->getVTList(), Ops);
+    assert(DAG.isGuaranteedNotToBeUndefOrPoison(R, /*PoisonOnly*/ false) &&
+           "Can't create node that may be undef/poison!");
+    return R;
+  }
 }
 
 /// We know that BV is a build_vector node with Constant, ConstantFP or Undef